Mounting means for electrical parts



'OCt. 23, 1945. w A RAY MOUNTING MEANS FOR ELECTRICAL PARTS Filed March 10, 1943 l l i 1 Mp A M M I, L W m Patented Oct. 23., 1945 MOUNTING MEANS FOR ELECTRICAL PARTS William A. Ray, Los Angeles, Calif.

Application March 10, 1943, Serial No. 478,628

8 Claims.

This invention relates to electrical devices, and more particularly to means for mounting parts thereof; the present application being a division or my copending application, Serial No. 413,619, flied October 4, 1941.

An object of the invention is to providein connection with terminal posts of the type which are mounted at one end on a base by single screw means and are adapted to be electrically connected at the other end with a lead or wire of the device means for preventing rotation 01' the post when the screw means is manipulated; thereby avoiding the possibility that the lead at the other end of the post might be broken or shorted.

Another object is to provide simple and efiective means for mounting a U-shaped core of an electromagnet, which means comprises a member apertured to receive the side arms of the core; the same member also being adapted to serve as the means for preventing rotation of the terminal posts referred to in the preceding paragraph.

Other objects and advantages of the invention will be found in the description, the drawing, and the claims; and, for full understanding of the invention, reference may be had to the following detailed description and accompanying drawing, wherein:

Figure 1 is a view, partly in vertical section, of a fluid control valve embodying the invention;

Figure 2 is a horizontal section taken along the line 2-4 oi! Fig. 1; and

Figure 3 is a fragmentary vertical section taken along the line 3--3 of Fig. 2.

The valve illustrated in Fig. 1 comprises a main casing Ii having inlet and outlet connections i2 and i3, respectively, and an annular valve seat It with which a disk-like closure member i5 is cooperable to control fluid flow through the valve. The cylindrical lower portion or stem l8 of the closure member I5 is slidable in a bushing I! which is secured in a central opening in a disk l8. The marginal portion of this disk is received in a shallow recess formed in the bottom of the main casing i l and is held therein by means contained in a sub-casing l9 (secured to the main casing) and hereinafter to be described. The closure member I5 is guided at its upper end by a plurality of spaced portions extending from the inner wall of the main casing.

For the operation of the closure member l5,

there is provided a channelled arm 2| which is pivoted at one of its ends on a bracket 22 secured to the sub-casing IS, the bifurcated other end of the arm straddling the hexagonal upper portion 23 of the stem l6 and having elongated openings for receiving the projecting ends of a pin 24 se-- cured in that portion. For actuating the arm 2! there is provided a reciprocable rod 25, the movement of which is effected by means (not shown) contained in the upper portion of the main casing and controlled by the manual rotation of a knob 26; the arrangement being such that when the knob is released, rod 25 returns to its retracted position as shown. The arm 2| also serves to operate, through a stem 21, supplemental valve means (not shown) in the sub-casing IQ, for which a supplemental fluid connection 28 is provided. Biasing the closure member i5 toward its seat is a torsion spring 29 connected to the arm 2! and bracket 22.

Carried on the bottom end of the closure member stem i 6 is an armature 30 which is cooperable with an electromagnet, generally indicated at 31, mounted in the sub-casing I9 and comprising a U-shaped core 32, around one side arm of which is an energizing coil 33. The leads of this coil are soldered to the top ends of a pair of hexagonal terminal posts 34, insulatingly secured to the bottom wall of the sub-casing by hexagon-headed hollow screws (Fig. 3) in which are threaded screws 36 for connection of the electromagnet in an external circuit. To prevent possible rotation of the posts 34 (and consequent damage to the coil leads) when external electrical connc tions are made or removed, a disk 31 of insulating moterial is provided, the disk fitting snugly-within the sub-housing and having a pair of hexagonal openings for the posts. The disk rests on metal washers 38 on top of the upper insulating washers 39 of the terminal posts, and on a raised portion 40 (Fig. 1) of the sub-casing. The bottom wall of sub-casing l9 forms a base plate for the terminal posts 34, and the disk 31 a sub-base plate.

It will be observed that rotation of either one of the terminal posts 34 is prevented due to the inability of the disk 31 to rotate (along with that post) about the post axis; in the present instance such rotation of the disk being prevented (1) due to the presence of two terminal posts, (2) due to the relatively close fit of the disk within the subhouslng and the fact that each post is located eccentrically of the disk, and (3) due to the nesting of the bottom end of the core within its recess in the bottom of the sub-casing.

The disk 31 also serves to hold in position the core 32, the side arms of which extend upward through a generally-rectangular central opening n the disk. A U-shaped metal strap 4i embraces the medial portion of the core and is outwardly bent-over at its ends below the disk 31 to hold the bottom of the core in a recess 32 provided for it in the bottom wall of the sub-casing. Hence, in the same manner as in connection with the terminal posts 34 described hereinabove, the bottom wall of sub-casing 19 forms a base plate for core 32, and the disk 37 a sub-base plate. The disk 37 is held from vertical movement by a pair of opposed cupshaped shells t3 and Ml which fit snugly within the sub-casing l9, and the interengaging end walls of which are apertured to receive the upper end portions of the core arms. The combined length of the shells is such that. when in position, the mouth of the upper shell 68 is flush with the upper surface of the sub-hous ng so that the shells serve not only to hold the disk 3? and the electromagnet in position, but also (through a gasket 438) the plate it in its recess in the upper casing it.

The armature 3b is rockably mounted on a headed rod it, secured to the closure member stem it, so that its surface can readily conform to the polar surfaces of the core 32 when the armature and core are brought together; a light spring 37 being interposed between the armature and stem it to take up lost-motion of the armature in its downward movement. In Fig. 1, the armature is shown magnetically held in engagement with the core 32 due to energization of the electromagnet by a source of electrical energy not shown. If the electromagnet is deenergized, the armature is released and the closure member l5 moves upwardly in engagement with its seat under the force of the spring 29 of arm 29; in order to reopen the closure member. it then being necessary to manually reset" the armature into engagement with the core by'operation of knob 26, the parts again being maintained in the positions shown as long as the electromagnet is energized.

While I have herein shown and described a specific embodiment of my invention, I wish it to be understood that modifications may be made without departing from the spirit of the invention, and that I intend therefore to be limited only by the scope of the appended claims.

I claim as my invention:

1. In an electrical device including an electromagnet: a U-shaped core for said electromagnet, there being an energizing coil around one of the side arms of said core; a base plate; and means for mounting said core on said base plate so that the free ends of the side arms of the core extend in a direction generally at right-angles to the base plate, comprising a sub-base plate apertured to receive said side arms of the core and disposed between said coil and the closed end of the core in a plane sumtan-tially parallel to that of said base plate, and means for securing said sub.base plate with respect to said base plate without affooting said coil.

2. In an electrical device including an electromagnet: a U-shaped core for said electromagnet, there being an energizing coil around one of the side arms of said core; a base plate; and means for mounting said core on said base plate so that the free ends of the side arms of the core extend in a direction generally at right-angles to the base plate, comprising a sub-base plate having an opening therethrough for receiving said side arms and disposed between said coil and the closed end of the core in a plane substantially parallel to that of said base plate so that said side arms are encompassed by the sub-base plate, means extending between said side arms and engageable with the core and the surface of the aaeasoa sub-base plate facing the base plataand means for securing the sub-base plate with respect to the base plate without aifecting said coil.

3. In an electrical device including an electromagnet: a U-shamd core for said eleotromagnet; a base plate having a recess therein corresponding to the contour of the closed end of said core; and means for mounting said core in said recess so that the free ends of the side arms of the core plate facing the base plate, and means for securing the sub-base plate with respect to the base plate.

4. In an electrical device including an electromagnet: a U-shaped core for said electromagnet and having an energizing coil around one of its side arms; a terminal post adapted for connection at one of its ends with a lead of said coil, at least a portion of said post being noncircular in crosssection; a base plate; single metallic screw means extending through an'opening in said base plate for attaching the other end of the post to the base plate, and including means at the side of the base plate away from the post for connecting the post in an electrical circuit; and means for -mounting said core on said base plate so that the free ends of the side arms of the core extend in a direction generally at right-angles to the base plate and also for preventing rotation of said post when said screw means is manipulated, comprising a sub-base plate apertured to receive said side arms of the core and disposed in a plane substantially parallel to that of said base plate, said sub-base plate also having an opening conforming to the noncircular shape of said portion of the post within which opening that portion of the post is disposed, and means for securing the sub-base plate with respect to the base plate.

5. In an electrical device including an electromagnet: a U-shaped core for said electromagnet; a cup-shaped receptacle for said core; and means for mounting the core on the bottom wall of said receptacle so that the free ends of the side arms of the core extend in a direction generally at right-angles to said bottom wall, comprising a plate apertured to receive said side arms of the core and disposed in a plane substantially parallel to that of said bottom wall, and means for securing said plate with respect to the receptacle comprising a hollow tubular member fitting the side wall of the receptacle and in engagement with the marginal portions of the plate.

6. In an electrical device: an elongated terminal post adapted for electrical connection at one of its ends with a lead of said device, at least a portion of said post being noncircular in cross-section; a base plate; a single metallic screw means insulatingly extending through an opening in said base plate for attaching the other endof the post to the base plate, and including means at the side of the base plate away from the post for connecting the post in an electrical circuit; and. means for preventing rotation of the post with respect to the base plate when said screw means is manipulated, comprising a sub-base plate of insulating material lying in a plane substantially parallel to that of the base plate and having an opening, conforming to the noncircular shape of the post, within which that portion of the post is disposed, said one end of the post being freely insertable in said noncircular opening in assembly, said sub-base plate being unrestrained by the post from movement longitudinally thereof, and means for preventing relative rotation of the base plate and the sub-base plate about the axis of said screw means.

'7. In an electrical device: a pair of elongated laterally-spaced terminal posts adapted for electrical connection at each of one of their individual ends with a lead of said device, at least a portion of said posts being noncircular in crosssection; a base plate; metallic screw means, one for each post, insulatingly extending through openings in said base plate for individually attaching the other ends of the posts to the base plate, and including means at the side of the base plate away from the posts for connecting the posts in an electrical circuit; and means for preventing rotation of the posts with respect to the base plate when said screw means are manipulated, comprising a sub-base plate of insulating material lying in a plane substantially parallel to that of th base plate and having openings, conforming to the noncircular shapes of said portions of the posts, within which those portions of the posts are individually disposed, said one of the ends of the posts being freely insertable in said noncircular openings in as sembly, said sub-base plate being unrestrained by the posts from movement longitudinally thereof.

8. In an electrical device: an elongated terminal post adapted for electrical connection at one of its ends with a lead of said device, said post being generally noncircular in cross-section; a base plate; a threaded metallic member insulatingly extending through an opening in said base plate and received in a correspondingly threaded opening in the other end of the post for attach ing the post to the base plate, and including means, at the outer end'of the threaded meniber for connecting the post in an electrical circuit; and means for preventing rotation of the post with respect to the base plate when said threaded member is manipulated, comprising a sub-base plate of insulating material disposed in a plane substantially parallel to that of the base plate and having an opening, conforming to the noncircular shape of the post, through which the post extends, said one end of the post being freely insertable in said noncircular opening in assembly, said sub-base plate being unrestrained by the post from movement longitudinally thereof, and means for preventing relative rotation of the base plate and the sub-base plate around the axis of said threaded member.

WILLIAM A. RAY. 

